[tor-bugs] #29863 [Obfuscation/Snowflake]: Add disk space monitoring for snowflake infrastructure

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#29863: Add disk space monitoring for snowflake infrastructure
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 Reporter:  cohosh                 |          Owner:  (none)
     Type:  task                   |         Status:  new
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:  snowflake              |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:  Sponsor19
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Comment (by dcf):

 On IRC, armadev and anarcat suggest using prometheus, which is being used
 to monitor torproject machines.
   https://help.torproject.org/tsa/howto/prometheus/
 If the Snowflake bridge and broker were hosted and managed by Tor, then I
 gather that we would get disk space monitoring (and other things)
 automatically through their common puppet deployment. But as they are
 currently separately managed, anarcat says says we need to
  * apt install prometheus-node-exporter (from stretch-backports please)
  * provide the sysadmins with canonical hostnames

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29863#comment:3>
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